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    • 9. 发明授权
    • Method of generating parity data based on low-density parity check matrix and apparatus therefor
    • 基于低密度奇偶校验矩阵生成奇偶校验数据的方法及其设备
    • US07278082B2
    • 2007-10-02
    • US10765278
    • 2004-01-28
    • Ki-hyun KimSung-hyu HanIn-sik ParkYoon-woo Lee
    • Ki-hyun KimSung-hyu HanIn-sik ParkYoon-woo Lee
    • H03M13/00
    • H03M13/1182
    • A method of generating parity data based on a low-density panty check matrix and an apparatus therefor, the method including: reordering columns of the parity check matrix based on elements in each column having values of one to generate a reordered parity check matrix; determining a cross-point between a diagonal line of a parity matrix part in the parity check matrix and a reordered diagonal line defined by a first entry of an element having a value of one in each column of the reordered parity check matrix; and performing column permutations on the reordered parity check matrix on the basis of positions of elements having a value of one in rows above a horizontal line that passes through the cross-point to generate a triangular matrix, thus reducing the computations required to generate parity data, thereby efficiently obtaining the parity data.
    • 一种基于低密度内裤校验矩阵产生奇偶校验数据的方法及其装置,所述方法包括:基于每列中具有值1的元素重新排列奇偶校验矩阵的列,以生成重新排序的奇偶校验矩阵; 确定所述奇偶校验矩阵中的奇偶校验矩阵部分的对角线与由所述重新排序的奇偶校验矩阵的每列中具有值1的元素的第一条目所定义的重排序的对角线之间的交叉点; 并且基于经过交叉点的水平线上的一行的值为1的元素的位置,在重新排序的奇偶校验矩阵上执行列排列,从而减少生成奇偶校验数据所需的计算 从而有效地获得奇偶校验数据。